Heavy Quark Potential at Finite Temperature in AdS/CFT
arXiv:0908.2541 · doi:10.1016/j.nuclphysa.2009.10.134
Abstract
A calculation of the heavy quark potential at finite temperature at strong coupling based on the AdS/CFT correspondence is presented. The calculation relies on the method of complex string trajectories and on the introduction of a modified renormalization subtraction. The obtained potential is smooth, negative definite for all quark-antiquark separations, and develops an imaginary part for r > r_c =0.870/πT . At large separations the real part of the potential does not exhibit the exponential Debye falloff expected from perturbation theory and instead falls off as a power law, proportional to 1/r^4.
4 pages, 1 figure. Contribution to the proceedings of the 21st International Conference on Ultra-Relativistic Nucleus-Nucleus collisions (QM09), March 30 April 4 2009, Knoxville (TN)